mk: Only link dynamic library with --whole-archive

For the executable we should not use this option as it unnecessarily
increases binary size.

There might also be incompatibilities with Mac, see #126

Signed-off-by: Felix Walter <felix.walter@d3tn.com>

mk/build.mk

@@ -41,7 +41,8 @@ $(eval $(call addComponentWithRules,external/util/src))
 $(eval $(call generateComponentRules,components/daemon))
 $(eval $(call generateComponentRules,test/unit))
 
-build/$(PLATFORM)/libud3tn.so: LDFLAGS += $(LDFLAGS_LIB)
+build/$(PLATFORM)/libud3tn.so: LDFLAGS += $(LDFLAGS_LIB) -Wl,--no-whole-archive
+build/$(PLATFORM)/libud3tn.so: LDFLAGS_PRE += -Wl,--whole-archive
 build/$(PLATFORM)/libud3tn.so: LIBS = $(LIBS_libud3tn.so)
 build/$(PLATFORM)/libud3tn.so: $(LIBS_libud3tn.so) | build/$(PLATFORM)
 	$(call cmd,link)

mk/toolchain.mk

@@ -55,9 +55,10 @@ cmd_ar             = "$(AR)" rcs "$@" $(OBJECTS)
 
 quiet_cmd_link     = LINK    $@
 cmd_link           = "$(LD)" -o "$@" \
-                     -Wl,--whole-archive -Wl,--start-group \
+                     $(LDFLAGS_PRE) \
+                     -Wl,--start-group \
                      $(OBJECTS) $(LIBS) \
-                     -Wl,--end-group -Wl,--no-whole-archive \
+                     -Wl,--end-group \
                      $(LDFLAGS)
 
 quiet_cmd_mkdir    = MKDIR   $@